A guideline to inform designers on the design of an Automated Flushing Siphon System as a means to reduce the frequency of blockages on the wastewater network caused by pipe dips and flat grades.
Workers use a large water-blasting pipe to clear blocked drains. The photographer comments, "The Australian company Barry Bros Turned up very late at night to clean out our street drains of liquefaction".
A worker uses a large water-blasting pipe to clear blocked drains. The photographer comments, "These guys worked really hard late at night to remove the liquefaction blocking our drains, but did not pre-warn people. Our elderly neighbour's toilet was drenched in water".